return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H9NO (Propanamide, 2-methyl-)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-286.540318
Energy at 298.15K-286.550886
HF Energy-285.960318
Nuclear repulsion energy242.538553
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3754 3616 33.55      
2 A 3596 3463 50.58      
3 A 3140 3024 47.33      
4 A 3134 3019 4.33      
5 A 3122 3007 55.91      
6 A 3118 3003 21.38      
7 A 3045 2933 34.87      
8 A 3020 2909 26.29      
9 A 3020 2909 38.35      
10 A 1697 1634 192.22      
11 A 1638 1578 109.05      
12 A 1548 1491 15.20      
13 A 1541 1484 16.14      
14 A 1533 1477 4.10      
15 A 1527 1470 0.79      
16 A 1461 1407 24.74      
17 A 1442 1389 7.76      
18 A 1430 1378 37.50      
19 A 1360 1310 0.95      
20 A 1302 1254 155.67      
21 A 1226 1181 10.66      
22 A 1148 1105 11.11      
23 A 1137 1095 1.70      
24 A 1082 1042 11.02      
25 A 993 956 0.08      
26 A 958 922 3.39      
27 A 925 891 1.22      
28 A 752 724 1.73      
29 A 743 716 20.44      
30 A 612 589 112.62      
31 A 603 580 4.12      
32 A 473 456 224.15      
33 A 470 453 2.96      
34 A 326 314 0.78      
35 A 285 275 6.06      
36 A 239 230 4.82      
37 A 234 226 1.75      
38 A 204 197 0.44      
39 A 39 38 8.50      

Unscaled Zero Point Vibrational Energy (zpe) 28937.8 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 27870.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/LANL2DZ
ABC
0.15653 0.08346 0.08131

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.384 -1.289 -0.026
H2 -0.855 -2.200 -0.358
H3 -1.461 -1.311 1.075
H4 -2.402 -1.298 -0.458
C5 -1.384 1.290 -0.019
H6 -0.853 2.203 -0.346
H7 -1.460 1.306 1.082
C8 -0.623 0.001 -0.475
H9 -0.539 0.004 -1.580
N10 1.850 0.003 -0.788
H11 2.806 0.002 -0.443
H12 1.688 0.006 -1.789
C13 0.799 -0.001 0.132
O14 1.009 -0.005 1.389
H15 -2.401 1.302 -0.451

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 N10 H11 H12 C13 O14 H15
C11.10551.10381.10532.57833.54602.82221.56412.19163.56564.40483.77182.53973.06262.8154
H21.10551.79221.79373.54604.40303.83842.21702.54073.51514.27313.65822.79503.36813.8298
H31.10381.79221.79882.82223.83842.61662.19723.10354.02044.71574.45602.77722.81193.1686
H41.10531.79371.79882.81543.82983.16862.20322.53484.45895.36784.49443.50344.08882.6005
C52.57833.54602.82222.81541.10551.10381.56412.19163.56464.40383.77072.53963.06311.1053
H63.54604.40303.83843.82981.10551.79232.21712.54073.51344.27143.65622.79483.36891.7937
H72.82223.83842.61663.16861.10381.79232.19723.10354.01964.71484.45502.77712.81251.7987
C81.56412.21702.19722.20321.56412.21712.19721.10852.49293.42932.65851.54562.47742.2032
H92.19162.54073.10352.53482.19162.54073.10351.10852.51753.53382.23732.17313.34872.5348
N103.56563.51514.02044.45893.56463.51344.01962.49292.51751.01661.01381.39752.33394.4581
H114.40484.27314.71575.36784.40384.27144.71483.42933.53381.01661.75022.08832.56585.3671
H123.77183.65824.45604.49443.77073.65624.45502.65852.23731.01381.75022.11713.24964.4935
C132.53972.79502.77723.50342.53962.79482.77711.54562.17311.39752.08832.11711.27433.5034
O143.06263.36812.81194.08883.06313.36892.81252.47743.34872.33392.56583.24961.27434.0892
H152.81543.82983.16862.60051.10531.79371.79872.20322.53484.45815.36714.49353.50344.0892

picture of Propanamide, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C8 C5 111.016 C1 C8 H9 108.985
C1 C8 C13 109.511 H2 C1 H3 108.431
H2 C1 H4 108.456 H2 C1 C8 111.134
H3 C1 H4 109.027 H3 C1 C8 109.683
H4 C1 C8 110.061 C5 C8 H9 108.985
C5 C8 C13 109.503 H6 C5 H7 108.433
H6 C5 C8 111.135 H6 C5 H15 108.455
H7 C5 C8 109.683 H7 C5 H15 109.025
C8 C5 H15 110.062 C8 C13 N10 115.687
C8 C13 O14 122.640 H9 C8 C13 108.804
N10 C13 O14 121.672 H11 N10 H12 119.083
H11 N10 C13 118.930 H12 N10 C13 121.987
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability